EP0716895B2 - A parting or grooving insert - Google Patents

A parting or grooving insert Download PDF

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Publication number
EP0716895B2
EP0716895B2 EP95118478A EP95118478A EP0716895B2 EP 0716895 B2 EP0716895 B2 EP 0716895B2 EP 95118478 A EP95118478 A EP 95118478A EP 95118478 A EP95118478 A EP 95118478A EP 0716895 B2 EP0716895 B2 EP 0716895B2
Authority
EP
European Patent Office
Prior art keywords
insert
cutting
respect
relief
component
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP95118478A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0716895A1 (en
EP0716895B1 (en
Inventor
Jacob Friedman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Iscar Ltd
Original Assignee
Iscar Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11066884&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0716895(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Iscar Ltd filed Critical Iscar Ltd
Priority to DE29522430U priority Critical patent/DE29522430U1/de
Publication of EP0716895A1 publication Critical patent/EP0716895A1/en
Application granted granted Critical
Publication of EP0716895B1 publication Critical patent/EP0716895B1/en
Publication of EP0716895B2 publication Critical patent/EP0716895B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
    • B23B29/04—Tool holders for a single cutting tool
    • B23B29/06—Tool holders equipped with longitudinally-arranged grooves for setting the cutting tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/04—Cutting-off tools
    • B23B27/045—Cutting-off tools with chip-breaking arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2205/00—Fixation of cutting inserts in holders
    • B23B2205/02—Fixation using an elastically deformable clamping member
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/22—Cutters, for shaping including holder having seat for inserted tool
    • Y10T407/2272—Cutters, for shaping including holder having seat for inserted tool with separate means to fasten tool to holder
    • Y10T407/2282—Cutters, for shaping including holder having seat for inserted tool with separate means to fasten tool to holder including tool holding clamp and clamp actuator
    • Y10T407/2286—Resiliently biased clamp jaw
    • Y10T407/2288—Integral with holder
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/23—Cutters, for shaping including tool having plural alternatively usable cutting edges
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/25—Cutters, for shaping including cut off tool

Definitions

  • This invention relates to a parting or grooving insert, according to the preamble of claim 1 and as known for example from EP-A-0365299 .
  • Such parting or grooving inserts of the kind to which the present invention particularly relates are formed with a front cutting edge which is inclined with respect to a normal to a longitudinal median plane of the insert by an angle known as the lead angle of the insert.
  • Such inserts are generally divided into three categories, namely right-hand and left-hand inserts depending on the direction of inclination of the insert and neutral inserts where the leading angle is substantially zero.
  • the cutting edge is formed at the intersection of an upper rake surface of the insert and a front relief flank thereof.
  • the cutting end portion is formed with a leading angle
  • the relief flank is correspondingly inclined with respect to a normal to a longitudinal median plane of the insert.
  • a double-ended parting or grooving insert comprising a central body portion and a pair of opposite cutting end portions; each cutting end portion having an upper rake surface and front and side relief flanks and a front cutting edge formed at an intersection of said rake surface and said front relief flank; characterized in that said front relief flank comprises an upper relief flank surface component; a lower abutment surface component inset with respect to said upper component and disposed substantially normally with respect to a longitudinal median plane intersecting sad front cutting edges and an intermediate surface component serving to bridge said upper and lower components.
  • Said cutting edge and said upper relief flank surface component are inclined with respect to a normal to said plane by a leading angle of said cutting edge.
  • the double-ended parting or grooving insert in accordance with the invention is of the right-hand or left-hand type where the front cutting edge and the associated upper relief flank component surface have leading angles of respectively opposite senses.
  • the cutting insert can be securely retained in an appropriate insert holder with its abutment surface component abutting over its entire surface area the adjacent support surface of the holder. In this way the same insert holder can be effectively used irrespective of whether the insert is neutral, right-handed or left-handed and at the same time ensure the effective supportive abutment of the insert within the holder.
  • a double-ended parting and grooving insert 1 comprises a central body portion 2 and, a pair of opposite cutting end portions 3a and 3b.
  • Each cutting end portion (3a,3b) comprises a rake surface 4 and a front relief flank 5 and side relief flanks 6.
  • a front cutting edge 7 is formed at the intersection of the rake surface 4 and the front relief flank 5.
  • each front relief flank 5 comprises an upper, relief flank surface component 5a, a lower abutment surface component 5b and an intermediate surface 5c which serves to bridge the respective upper and the lower surface components 5a and 5b. Furthermore, the lower abutment surface component 5b is inset with respect to the upper relief flank surface component 5a.
  • each front cutting edge is inclined with respect to a normal 9 to a longitudinal median plane 10 of the insert by an angle ⁇ known as the leading angle of the insert. Depending on the sense of the angle ⁇ with respect to the normal 9 the Insert can be right-handed or left-handed.
  • the upper relief flank surface component 5a is also inclined with respect to a normal to the longitudinal median axis of the insert by the same leading angle ⁇ .
  • the lower abutment surface component is disposed substantially normally with respect to the longitudinal median plane of the insert.
  • the insert is designed to be retained in an insert holder 12 having an insert retaining slot 13 defined between respective upper and lower clamping surfaces 14 and 15 of an upper, resiliently displaceable clamping jaw 16 and a lower, relatively fixed clamping jaw 17, respectively.
  • An inner rear end of the retaining slot 13 is formed with upper and lower curved recesses 18 and 19 and a central support surface 20.
  • double-ended parting and grooving inserts of the kind just described in accordance with the invention can be readily prepared by compacting of, for example, tungsten carbide powders in a suitable die for subsequent sintering, thereby obviating in many cases the necessity of subsequent grinding operations, it is possible to produce inserts in accordance with the present invention utilizing such grinding operations.
  • An insert such as that shown in Fig. 3 of the drawings which has been prepared by compacting and sintering may be subsequently ground so as to provide a much increased lead angle.
  • Cutting inserts in accordance with the present invention which are, as explained, of the right-handed or left-handed kind can be effectively and securely retained in insert holders which can be used for all types whilst, at the same time ensuring that the rear end of the insert is effectively supported by abutting over a significant surface area the support surface formed by the holder.
  • parting and grooving inserts whose cutting edges have leading angles which range from greater than 0° to 20° can be effectively employed in accordance with the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Confectionery (AREA)
  • Food-Manufacturing Devices (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Centrifugal Separators (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
EP95118478A 1994-12-14 1995-11-23 A parting or grooving insert Expired - Lifetime EP0716895B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29522430U DE29522430U1 (de) 1994-12-14 1995-11-23 Ein Abstech- oder Nutschneideinsatz

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL11197694 1994-12-14
IL11197694A IL111976A (en) 1994-12-14 1994-12-14 Parting or grooving insert

Publications (3)

Publication Number Publication Date
EP0716895A1 EP0716895A1 (en) 1996-06-19
EP0716895B1 EP0716895B1 (en) 1999-05-06
EP0716895B2 true EP0716895B2 (en) 2009-11-25

Family

ID=11066884

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95118478A Expired - Lifetime EP0716895B2 (en) 1994-12-14 1995-11-23 A parting or grooving insert

Country Status (12)

Country Link
US (1) US6428247B1 (zh)
EP (1) EP0716895B2 (zh)
JP (1) JP3887788B2 (zh)
KR (1) KR100365457B1 (zh)
CN (1) CN1055648C (zh)
AT (1) ATE179641T1 (zh)
BR (1) BR9505677A (zh)
DE (2) DE716895T1 (zh)
ES (1) ES2092455T5 (zh)
IL (1) IL111976A (zh)
PL (1) PL178680B1 (zh)
RU (1) RU2149080C1 (zh)

Families Citing this family (34)

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Publication number Priority date Publication date Assignee Title
SE514872C2 (sv) * 1998-09-09 2001-05-07 Sandvik Ab Skär för spårsvarvning
SE513633C2 (sv) 1999-02-02 2000-10-09 Sandvik Ab Verktyg för avstickning och liknande operationer
SE522209C2 (sv) 2000-03-02 2004-01-20 Sandvik Ab Verktyg för spånavskiljande bearbetning med vinklat skärhuvud
DE10218875A1 (de) * 2002-04-26 2003-11-20 Heule Ulf Werkzeug zum Senken, Entgraten und Ausspindeln von Bohrungen
EP1558431B1 (en) * 2002-10-18 2017-05-03 Kennametal Inc. Metal cutting insert with chip breaking surfaces
JP4407503B2 (ja) * 2004-12-16 2010-02-03 三菱マテリアル株式会社 切削インサートのクランプ機構
JP2007030055A (ja) * 2005-07-22 2007-02-08 Konica Minolta Opto Inc 切削工具、加工方法、加工装置及び光学素子成形用金型
JP2007069291A (ja) * 2005-09-06 2007-03-22 Mitsubishi Materials Corp 切削インサート及びインサート着脱式切削工具
JP5104076B2 (ja) * 2007-07-04 2012-12-19 三菱マテリアル株式会社 切削インサート
US20090071223A1 (en) * 2007-09-19 2009-03-19 Rogers Bryan L Staged Tooling Technology
IL191520A (en) * 2008-05-18 2012-04-30 Iscar Ltd Cutting tool and cutting tool for it
CN101524765B (zh) * 2009-04-13 2010-07-21 吴淼东 小内孔车槽刀
US8083442B2 (en) * 2009-06-30 2011-12-27 Sae Magnetics (H.K.) Ltd. Cutting tool for lapping plate
IL203014A (en) * 2009-12-29 2013-03-24 Iscar Ltd Cutting tool and cutting insert therefor
KR101075292B1 (ko) * 2010-01-14 2011-10-20 대구텍 유한회사 절삭 공구
US8943933B2 (en) * 2010-02-05 2015-02-03 Mitsubishi Materials Corporation Cutting edge replacement type groove forming tool and end face groove forming method
DE102011080379A1 (de) 2010-08-04 2012-02-09 Ceramtec Gmbh Schneidwerkzeug zum Einstechen und Stechdrehen
AT12526U1 (de) 2011-03-09 2012-07-15 Ceratizit Austria Gmbh Schneideinsatz
WO2012173255A1 (ja) * 2011-06-17 2012-12-20 株式会社タンガロイ 切削インサート及び回転切削工具
DE202011105832U1 (de) * 2011-09-17 2011-10-24 Kemmer Hartmetallwerkzeuge Gmbh Schneidplatte zum Kopierdrehen
US8905684B2 (en) * 2012-06-22 2014-12-09 Kennametal Inc. Slotting cutter, cutting insert and tool therefor
US9050658B2 (en) * 2012-07-24 2015-06-09 Iscar, Ltd. Cutting insert with bottom stopper surface between bottom abutment surfaces and cutting tool therefor
US9403214B2 (en) * 2013-08-27 2016-08-02 Iscar, Ltd. Hard metal cutting tool holder blade and cutting tool having such holder blade
CN204262385U (zh) * 2014-07-14 2015-04-15 杨卫峰 一种机床切断刀具
EP3023178B1 (en) * 2014-11-24 2022-05-11 Sandvik Intellectual Property AB A method of grinding a parting/grooving insert and a parting/grooving insert
CN105149624B (zh) * 2015-07-28 2017-09-29 广东欧珀移动通信有限公司 加工刀具
USD824438S1 (en) * 2015-12-29 2018-07-31 Korloy Inc. Grooving insert for a machine tool
CN109570629B (zh) * 2017-09-28 2020-09-25 株式会社泰珂洛 切削工具
EP3785830A1 (en) * 2019-08-30 2021-03-03 Walter Ag Cutting insert for parting off a metal work piece
USD1019723S1 (en) * 2020-11-26 2024-03-26 Sumitomo Electric Hardmetal Corp. Cutting tool
USD975762S1 (en) * 2021-07-21 2023-01-17 Korloy Inc. Grooving insert for machine tools for metalworking
USD975761S1 (en) * 2021-07-23 2023-01-17 Korloy Inc. Grooving insert for machine tools for metalworking
US11806793B2 (en) 2021-11-03 2023-11-07 Iscar, Ltd. Cutting insert having laterally spaced apart, longitudinally extending wedge abutment surfaces, tool holder and cutting tool
US11766724B1 (en) 2022-03-16 2023-09-26 Iscar, Ltd. Cutting tool and tool holder having separate rear abutment and wedged rear stopper surfaces

Citations (2)

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Publication number Priority date Publication date Assignee Title
US4890961A (en) † 1986-11-20 1990-01-02 Montanwerke Walter Gmbh Lathe tool equipped with reversible plates for cutting grooves or threads
EP0474780A1 (en) † 1989-05-31 1992-03-18 Richard D Bohannan Tapping insert for threading and grooving.

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JPH0615517A (ja) * 1992-07-01 1994-01-25 Sumitomo Electric Ind Ltd スローアウェイチップ及び正面フライスカッタ
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Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4890961A (en) † 1986-11-20 1990-01-02 Montanwerke Walter Gmbh Lathe tool equipped with reversible plates for cutting grooves or threads
EP0474780A1 (en) † 1989-05-31 1992-03-18 Richard D Bohannan Tapping insert for threading and grooving.

Also Published As

Publication number Publication date
KR100365457B1 (ko) 2003-03-15
US6428247B1 (en) 2002-08-06
DE716895T1 (de) 1997-04-10
ATE179641T1 (de) 1999-05-15
ES2092455T1 (es) 1996-12-01
EP0716895A1 (en) 1996-06-19
DE69509480D1 (de) 1999-06-10
DE69509480T3 (de) 2010-06-10
JPH08229705A (ja) 1996-09-10
CN1131597A (zh) 1996-09-25
ES2092455T3 (es) 1999-07-16
CN1055648C (zh) 2000-08-23
BR9505677A (pt) 1997-11-11
KR960021312A (ko) 1996-07-18
EP0716895B1 (en) 1999-05-06
DE69509480T2 (de) 1999-09-16
IL111976A (en) 1997-11-20
IL111976A0 (en) 1995-03-15
PL311429A1 (en) 1996-06-24
JP3887788B2 (ja) 2007-02-28
RU2149080C1 (ru) 2000-05-20
PL178680B1 (pl) 2000-06-30
ES2092455T5 (es) 2010-04-12

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